Add Linting and auto formatting

[eftsung]

The idea is to use linting/auto formatting tools on any new file and recently merged test code files.

Tools to employ:
black, flake8, isort, pylint

We'd like to

• Add these to the poetry dev environment
• Have them run automatically after every commit. The .pre-commit-config.yaml could look like

repos:
  - repo: https://github.com/psf/black
    rev: <version> # Use the appropriate version
    hooks:
      - id: black
  - repo: https://github.com/PyCQA/flake8
    rev: <version>
    hooks:
      - id: flake8
  - repo: https://github.com/PyCQA/isort
    rev: <version>
    hooks:
      - id: isort
  - repo: https://github.com/PyCQA/pylint
    rev: <version>
    hooks:
      - id: pylint
exclude: |
    (?x)^(
        (data|models)/.*|
        utils/(
            flags.py|
            gpu_live_plot.py|
            optimizer.py|
            plot_val_acc_from_logfile.py|
            utils.py|
            zero_redundancy_optimizer.py
        )
    )$